Hahahaha my parents “watched my clothing” so I either had extra clothes in my bag that I’d change into, or I’d wear them under a top layer of “approved” clothing and take it off later.

Agreed. We all have bodies. Underwear is appropriate for shared spaces (most people dont want to sit on anyone else's ass juice) but aside from that this prudishness of the human form that many people have is silly to me.

Even if the dad DID walk around like that, I think that's his business. We should all be allowed to wear what we want (undies for sanitary reasons) and if something is offensive then people could just, you know, not look!